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4e56fdbce3
* sysdeps/generic/dl-sysdep.c (_dl_sysdep_start): If HAVE_AUX_XID is defined don't look whether the AT_*ID values were set. If HAVE_AUX_PAGESIZE is defined don't look whether the pagesize is set. (_dl_show_auxv): Rewrite to avoid switch statement. * sysdeps/unix/sysv/linux/kernel-features.h: Define __ASSUME_AT_PAGESIZE for kernel >= 2.4.1. * sysdeps/unix/sysv/linux/ldsodefs.h: Define HAVE_AUX_XID. Define HAVE_AUX_PAGESIZE if __ASSUME_AT_PAGESIZE is defined.
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/* Run-time dynamic linker data structures for loaded ELF shared objects.
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Copyright (C) 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _LDSODEFS_H
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#include "kernel-features.h"
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/* Get the real definitions. */
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#include_next <ldsodefs.h>
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/* Now define our stuff. */
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/* We have the auxiliary vector. */
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#define HAVE_AUX_VECTOR
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/* Used by static binaries to check the auxiliary vector. */
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extern void _dl_aux_init (ElfW(auxv_t) *av) internal_function;
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/* We can assume that the kernel always provides the AT_UID, AT_EUID,
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AT_GID, and AT_EGID values in the auxiliary vector. */
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#define HAVE_AUX_XID
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/* Starting with one of the 2.4.0 pre-releases the Linux kernel passes
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up the page size information. */
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#if __ASSUME_AT_PAGESIZE
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# define HAVE_AUX_PAGESIZE
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#endif
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#endif /* ldsodefs.h */
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